typo3/sysext/frontend/Classes/Middleware/PrepareTypoScriptFrontendRendering.php

   1 <?php
   2
   3 declare(strict_types=1);
   4
   5 /*
   6  * This file is part of the TYPO3 CMS project.
   7  *
   8  * It is free software; you can redistribute it and/or modify it under
   9  * the terms of the GNU General Public License, either version 2
  10  * of the License, or any later version.
  11  *
  12  * For the full copyright and license information, please read the
  13  * LICENSE.txt file that was distributed with this source code.
  14  *
  15  * The TYPO3 project - inspiring people to share!
  16  */
  17
  18 namespace TYPO3\CMS\Frontend\Middleware;
  19
  20 use Psr\Http\Message\ResponseInterface;
  21 use Psr\Http\Message\ServerRequestInterface;
  22 use Psr\Http\Server\MiddlewareInterface;
  23 use Psr\Http\Server\RequestHandlerInterface;
  24 use TYPO3\CMS\Core\TimeTracker\TimeTracker;
  25 use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
  26
  27 /**
  28  * Initialization of TypoScriptFrontendController
  29  *
  30  * Do all necessary preparation steps for rendering
  31  *
  32  * @internal this middleware might get removed in TYPO3 v10.x.
  33  */
  34 class PrepareTypoScriptFrontendRendering implements MiddlewareInterface
  35 {
  36     /**
  37      * @var TypoScriptFrontendController
  38      */
  39     protected $controller;
  40
  41     /**
  42      * @var TimeTracker
  43      */
  44     protected $timeTracker;
  45
  46     public function __construct(TypoScriptFrontendController $controller, TimeTracker $timeTracker)
  47     {
  48         $this->controller = $controller;
  49         $this->timeTracker = $timeTracker;
  50     }
  51
  52     /**
  53      * Initialize TypoScriptFrontendController to the point right before rendering of the page is triggered
  54      *
  55      * @param ServerRequestInterface $request
  56      * @param RequestHandlerInterface $handler
  57      * @return ResponseInterface
  58      */
  59     public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
  60     {
  61         // as long as TSFE throws errors with the global object, this needs to be set, but
  62         // should be removed later-on once TypoScript Condition Matcher is built with the current request object.
  63         $GLOBALS['TYPO3_REQUEST'] = $request;
  64         // Get from cache
  65         $this->timeTracker->push('Get Page from cache');
  66         // Locks may be acquired here
  67         $this->controller->getFromCache($request);
  68         $this->timeTracker->pull();
  69         // Get config if not already gotten
  70         // After this, we should have a valid config-array ready
  71         $this->controller->getConfigArray($request);
  72
  73         // Convert POST data to utf-8 for internal processing if metaCharset is different
  74         if ($this->controller->metaCharset !== 'utf-8' && $request->getMethod() === 'POST') {
  75             $parsedBody = $request->getParsedBody();
  76             if (is_array($parsedBody) && !empty($parsedBody)) {
  77                 $this->convertCharsetRecursivelyToUtf8($parsedBody, $this->controller->metaCharset);
  78                 $request = $request->withParsedBody($parsedBody);
  79             }
  80         }
  81         return $handler->handle($request);
  82     }
  83
  84     /**
  85      * Small helper function to convert charsets for arrays to UTF-8
  86      *
  87      * @param mixed $data given by reference (string/array usually)
  88      * @param string $fromCharset convert FROM this charset
  89      */
  90     protected function convertCharsetRecursivelyToUtf8(&$data, string $fromCharset)
  91     {
  92         foreach ($data as $key => $value) {
  93             if (is_array($data[$key])) {
  94                 $this->convertCharsetRecursivelyToUtf8($data[$key], $fromCharset);
  95             } elseif (is_string($data[$key])) {
  96                 $data[$key] = mb_convert_encoding($data[$key], 'utf-8', $fromCharset);
  97             }
  98         }
  99     }
 100 }